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Maxime Perrault

PROFILE

Maxime Perrault

Max Perrault developed and maintained the MTES-MCT/monitorenv repository, delivering robust features for environmental monitoring dashboards and data pipelines. He engineered scalable backend architectures and streamlined data flows, integrating technologies such as React, TypeScript, and Kotlin to support complex UI/UX requirements and reliable API endpoints. His work included optimizing database models, implementing accessibility (RGAA/WCAG) compliance, and expanding automated testing with Cypress and CodeQL. Max addressed performance and maintainability by refactoring modules, introducing caching strategies, and enhancing CI/CD pipelines. His contributions resulted in improved data accuracy, faster user workflows, and a more resilient platform, demonstrating depth in both frontend and backend engineering.

Overall Statistics

Feature vs Bugs

70%Features

Repository Contributions

374Total
Bugs
76
Commits
374
Features
175
Lines of code
125,600
Activity Months12

Work History

October 2025

12 Commits • 4 Features

Oct 1, 2025

Monthly summary for 2025-10 across MTES-MCT/monitorfish and MTES-MCT/monitorenv, focused on delivering business value through targeted alerting, UI polish, infrastructure upgrades, and test stability. The period emphasized maintainability, improved user workflows, and reduced release risk by delivering concrete features and stabilizing tests.

September 2025

24 Commits • 10 Features

Sep 1, 2025

Monthly summary for 2025-09 across MTES-MCT/monitorenv and MTES-MCT/monitorfish. Key business value came from UX improvements, data robustness, performance enhancements, and accessibility/testing coverage. Highlights: - Map Filtering UX Enhancements (monitorenv): added 3- and 12-month vigilance area filters and a visible counter showing how many filters are active on map views, enabling faster and more precise data exploration. - Beaches Data Schema Rename and Label Robustness (monitorenv): renamed beaches table columns to English and improved label formatting when official_name or postcode are missing to ensure robust display on the map. - Google Places Autocomplete Improvements (monitorenv): country-code filtering for French regions and debouncing to improve search relevance. - Active Vessels Data Retrieval and Caching Enhancement (monitorfish): enhanced data retrieval to handle incomplete data, added support for manual Prior Notifications (PNO) with end-to-end tests, and introduced a caching tag to refresh Active Vessels when PNOs are updated. - Frontend Accessibility Improvements and Testing (monitorfish): refactored map controls for keyboard navigation, introduced accessible UI components, and expanded accessibility testing with Cypress and Axe (injectAxe), plus RGAA checks. Other notable work included internal refactors and maintenance (Redux-based search state, migration/test infra), UI polish (HD PDF export images, mounting/unmounting animations), and measurement handling cleanup to separate display rounding from internal calculations. Impact: These changes improve data discoverability, reliability of map renderings, reporting fidelity, and accessibility, while strengthening testing coverage and maintainability. Technologies demonstrated include React hooks and Redux, UI/UX polish, data modeling/transformations, debouncing and caching strategies, and automated testing (Cypress, Axe) with RGAA alignment.

August 2025

17 Commits • 4 Features

Aug 1, 2025

August 2025 performance summary: Delivered end-to-end Beach data integration and map search in MTES-MCT/monitorenv, including a robust data pipeline and error handling for beach searches, enabling faster and more reliable beach data discovery for users. Implemented Dashboard and map UI improvements with accessibility (RGAA) compliance, removed geom from feature properties, enhanced findMapFeatureById, refined measurement tools and UI flow, and hardened stability across the dashboard. Optimized backend data models to improve query performance and streamlined dev workflows with a GeoServer mock setup, reducing onboarding time and test cycles. Expanded Vessel Group Management in MTES-MCT/monitorfish by adding landing port as a filterable attribute and a warning banner for modifications to shared groups, improving accuracy and cross-team collaboration. Overall impact: faster access to beach data, more reliable map interactions, and stronger accessibility compliance; improved developer productivity through dev-env improvements and better testability, leading to higher quality releases. Technologies demonstrated: data pipelines, UI/UX and accessibility design, React/TypeScript front-end refinements, backend data modeling, GeoServer mock, testing improvements, and animation/unmounting techniques.

July 2025

39 Commits • 22 Features

Jul 1, 2025

July 2025 performance summary: Delivered key features, fixed major reliability bugs, and demonstrated strong technical capabilities across MTES-MCT/monitorenv and MTES-MCT/monitorfish. Highlights include API for retrieving suspicion of infraction, vigilance area refactoring with multi-source data and unarchive logic, terminology standardization with updated E2E tests, infrastructure and data-hardening improvements to prevent OOM and improve test stability, and UX/UI enhancements plus proactive quality controls.

June 2025

27 Commits • 10 Features

Jun 1, 2025

June 2025 monthly summary for MTES-MCT/monitorenv focusing on stabilizing data flows, expanding test coverage, UI/UX refinements, and strengthening CI/security instrumentation. Highlights delivered across the MTES-MCT/monitorenv repo, driving reliability, maintainability, and business value through targeted features, bug fixes, and infrastructure improvements.

May 2025

52 Commits • 25 Features

May 1, 2025

May 2025 MTES-MCT/monitorenv delivered a focused uplift across architecture, data flows, performance, and user experience. Key architectural work established a robust foundation for future feature work through an ongoing module refactor and a clear API/OPTION split for tags and themes, alongside UI prop simplifications. Public API and data flows were expanded to support control plans via themes/subthemes and regulatory areas data processing, including DataGouv integration. Performance was enhanced through caching of ControlUnits with proper invalidation on save/archive/delete. UI/UX received polish for clarity and usability, and testing/quality efforts were stepped up to stabilize end-to-end scenarios. Key features delivered include: ongoing modular refactor and API/OPTION separation; checktreepicker enhancements and year-change behavior; public API exposure for control plans from themes/subthemes; regulatory areas data flow and DataGouv integration; performance improvements via caching and invalidation; and UI/UX improvements (displaying all unit names in activity, themeless controls, and visual tweaks). Major bugs fixed include: fixing regulatory area color layer and removing filter margins; removing .DS_Store references; preventing reporting-from-action overrides of action themes; ensuring filters persist with key-based identifiers; and stabilizing end-to-end mission list filters with test data adjustments. Overall impact and accomplishments: The month produced a substantial uplift in maintainability, data processing capabilities, and user-facing reliability. The team reduced future- risk by investing in architecture, improved performance for data-heavy views, and delivered data-sharing capabilities with external data flows, all while maintaining a steady focus on quality and testing. Technologies/skills demonstrated: architectural refactor strategy, API design and public endpoints, caching strategies and invalidation patterns, data flow integration (DataGouv), frontend UI/UX polish, and robust testing/QA practices (E2E, snapshots, test data reconciliation).

April 2025

32 Commits • 11 Features

Apr 1, 2025

April 2025 monthly highlights for MTES-MCT/monitorenv: Delivered a major architectural and UI refresh that positions the product for scalable growth and clearer business value realization.

March 2025

27 Commits • 11 Features

Mar 1, 2025

March 2025 — MTES-MCT/monitorenv: Delivered a focused set of features, reliability fixes, and infrastructure enhancements that improve operational clarity, data access, and platform stability. The work accelerates decision-making by providing clearer reporting overlays, faster media handling, and richer API capabilities, while modernizing the tech stack and improving code quality.

February 2025

31 Commits • 14 Features

Feb 1, 2025

February 2025—Delivered feature-rich, reliability-focused updates to MTES-MCT/monitorenv, focusing on reliable area-based analytics, improved briefing capabilities, and a stronger dashboard UX. Key outcomes include: (1) balance area table refactor with a safer reporting flow; (2) zones AMP updates for Aires Marines Protégées with inlined AMP cells; (3) refreshed summary tables driving clearer analytics; plus a set of major bug fixes: validation logic across BFF/API/public boundaries, removal of mission validation after end, and loading-wait improvements. These changes reduce breaking changes, speed up time-to-insight, and improve data accuracy across dashboards and briefs.

January 2025

47 Commits • 23 Features

Jan 1, 2025

January 2025 — MTES-MCT/monitorenv: Delivered significant reliability, performance, and UX improvements alongside strong testing and validation capabilities. Highlights include comprehensive logging and unit-test coverage across all use cases; a new Mission Validation Infrastructure with validation annotations and MissionValidator; modernization of mocks (mockitobean); added error logging on use-case exceptions and a callback to view.fit to improve debuggability and user interaction; UI/UX enhancements and refactors; WebWorker integration to resolve image load timeout issues; feature flags for dashboard images generation enabling staged rollout; envaction dates handling and geometry support; and dashboard performance optimizations including removing unnecessary workers and reducing image size. These changes reduce risk, improve maintainability, and accelerate business value delivery.

December 2024

37 Commits • 20 Features

Dec 1, 2024

December 2024 — MTES-MCT/monitorenv: Delivered high-value features and reliability improvements across data handling, testing, UI, and data presentation. Focus was on making data updates safer and faster, improving user feedback and UI consistency, strengthening test infrastructure, and laying groundwork for scalable maintenance. Key work included updating AMP flow semantics, UX enhancements (download spinner, tooltip behavior, branding color), robust test setup/teardown, and new data presentation controls (dashboard/map filters). Architectural refinements and stability fixes further reduced risk and positioned the project for future capabilities. These efforts collectively drive reduced risk, faster feedback loops, and higher user productivity across the platform.

November 2024

29 Commits • 21 Features

Nov 1, 2024

November 2024 – MTES-MCT/monitorenv: Focused on delivering business value through a mix of features, reliability fixes, and improvements to testing and observability. Key outcomes include the introduction of a dashboard briefing capability, UI/UX stability improvements, expanded end-to-end testing coverage for quarterly vigilance windows, PDF output refinements for comments, and enhanced error monitoring with Sentry. Overall impact: faster decision-making with dashboard briefs, more stable UI/tests, higher quality PDF exports, and improved production visibility.

Activity

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Quality Metrics

Correctness86.4%
Maintainability86.0%
Architecture81.4%
Performance77.8%
AI Usage21.8%

Skills & Technologies

Programming Languages

BinaryCSSDockerfileGradleHTMLJavaJavaScriptKotlinN/APython

Technical Skills

API DesignAPI DevelopmentAPI IntegrationAPI InterceptionAPI RefactoringAccessibilityAccessibility (RGAA/WCAG)Accessibility TestingAspect-Oriented ProgrammingAutomated TestingBackend DevelopmentBrowser CompatibilityBuild ToolsCI/CDCSS Animations

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

MTES-MCT/monitorenv

Nov 2024 Oct 2025
12 Months active

Languages Used

CSSJavaJavaScriptKotlinPythonSQLTypeScriptcss

Technical Skills

API IntegrationBackend DevelopmentBuild ToolsCI/CDCode AnalysisCode Quality

MTES-MCT/monitorfish

Jul 2025 Oct 2025
4 Months active

Languages Used

JavaScriptTypeScriptKotlinCSSSQLDockerfileShelltsx

Technical Skills

CypressEnd-to-end testingFrontend DevelopmentReactTypeScriptAPI Development

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